William Koskinen Adjunct Professor

Oliviera, Jr., R. S., W. C. Koskinen, and F. A. Ferreira. 2001. Sorption and leaching potential of herbicides in Brazilian soils. Weed Res. 41:97-110.

Cox, L., M. C. Hermosin, W. C. Koskinen, J. Cornejo. 2001. Interaction of imidacloprid with organic and inorganic exchanged smectites. Clay Minerals 36:267-274.

Koskinen, W. C., L. Cox, and P. Y. Yen. 2001. Changes in sorption/bioavailability of imidacloprid and two metabolites in soil with incubation time. Biol. Fert. Soils 33:546-550.

Bresnahan, G. A., A. G. Dexter, W. C. Koskinen, and W. E. Lueschen. 2001. Influence of soil pH sorption interactions on imazamox carryover in fresh and aged soil. Weed Res. (in press).

Carrizosa, M. J., W. C. Koskinen, M. C. Hermosin, and J. Cornejo. 2001. Dicamba adsorption-desorption on organoclays. Applied Clay Sci. 18:223-231.

Koskinen, W. C., and M. J. Duffy. 2001. Modern laboratory procedures for measuring organic crop protection chemicals. p. 241-254. In C. E. Clapp (ed.) Humic Substances and Chemical Contaminants. Soil Sci. Soc. Am., Madison, WI.

Bill Bresnahan, G. A., W. C. Koskinen, A. G. Dexter, and W. E. Lueschen. 2000. Influence of soil pH-sorption interactions on imazethapyr carryover. J. Agric. Food Chem. 48:1929-1934.

Celis, R., W. C. Koskinen, M. C. Hermosin, and J. Cornejo. 2000. Triadimefon interactions with organoclays and organotalcites. Soil Sci. Soc. Am. J. 64: 36-43.

Oliviera, R. S., W. C. Koskinen, N. R. Werdin, and P. Y. Yen. 2000. Sorption of imidacloprid and its metabolites on tropical soils. J. Environ. Sci. Health. B35:39-49.

Marek, L. J., W. C. Koskinen, and G. A. Bresnahan. 2000. LC/MS analysis of cyclohexanedione oxime herbicides in water. J. Agric. Food Chem. 48:2797-2801.

Berglof, T., W. C. Koskinen, J. Brucher, and H. Kylin. 2000. Linuron sorption-desorption in field moist soils. J. Agric. Food Chem. 48:3718-3721.

Dowdy, R. H., M. S. Dolan, J. A. Lamb, and W. C. Koskinen. 2000. Asymmetrical distribution and dissipation of band-applied atrazine in soil. J. Environ. Qual. 29:1291-1297.

Berglof, T., W. C. Koskinen, H. Kylin, and T. B. Moorman. 2000. Characterization of triadimefon sorption in soils using supercritical fluid (SFE) and accelerated solvent (ASE) extraction techniques. Pest Manag. Sci. 56:927-931.

Bresnahan, G. A., A. G. Dexter, and W. C. Koskinen. 1999. The effect of soil pH on sugarbeet yield and herbicide degradation. 1998 Sugarbeet Research and Extension Reports. 29:82-88.

Celis, R., W. C. Koskinen, M. C. Hermosin, and J. Cornejo. 1999. Sorption and desorption of triadimefon by soils and model soil components. J. Agric. Food Chem. 47:776-781.

Celis, R., and W. C, Koskinen. 1999. An isotopic exchange method for the characterization of the irreversibility of pesticide sorption-desorption in soil. J. Agric. Food Chem. 47:782-790.

Koskinen, W. C., A. M. Cecchi, R. H. Dowdy, and K. A. Norberg. 1999. Adsorption of selected pesticides on a rigid PVC lysimeter. J. Environ. Qual. 28:732-734.

Oliveira, R. S., Jr., W. C. Koskinen, F. A. Ferreira, B. R. Khakural, D. J. Mulla, P. C. Robert. 1999. Spatial variability of imazethapyr sorption in soil. Weed Sci. 47:243-248.

Puchalski, M. G. Elsner, G. Horwath, M. Loughran, and W. C. Koskinen. 1999. Pesticide-contaminated soil sample stability during frozen storage. J. Environ. Qual. 28:726-729.

Celis, R., and W. C. Koskinen. 1999. Celis, R., W. C. Koskinen, A. M. Cecchi, G. A. Bresnahan, M. J. Carrizosa, M. A. Ulibarri, and M. C. Hermosin. 1999. Sorption of the ionizable pesticide imazamox by organoclays and hydrotalcites. J. Environ. Sci Health. B34:929-941.

Celis, R., and W. C. Koskinen. 1999. Characterization of pesticide desorption from soil by the isotopic exchange technique. Soil Sci. Soc. Am. J. (in press).

Gan, J., S. K. Papiernik, W. C. Koskinen, and S. R. Yates. 1999. Evaluation of accelerated solvent extraction (ASE) for analysis of pesticide residues in soil. Environ. Sci. Technol. 33:3249-3253.

Berglof, T., W.C. Koskinen, and H. Kylin. 1998. Supercritical fluid extraction of metsulfuron methyl, sulfometuron methyl, and nicosulfuron from soils. Intern. J. Environ. Anal. Chem. 70:37-45.

Breiter, W.A., J.M. Baker, and W.C. Koskinen. 1998. Direct measurement of Henry's constant for S-ethyl N, N-di-n-propylthiocarbamate. J. Agric. Food Chem. 46:1624-1629.

Cellis, R., J. Cornejo, M.C. Hermosin, and W.C. Koskinen. 1998. Sorption of atrazine and simazine by model associations of soil colloids. Soil Sci. Soc. Am. J. 62:165-171.

Clay, S.A., D.E. Clay, W.C. Koskinen, and R. K. Berg Jr. 1998. Application method: Impacts on atrazine and alachlor movement, weed control, and corn yield in three tillage systems. Soil Till. Res. 48:215-224.

Cox, L., W.C. Koskinen, R. Cellis, P.Y. Yen, M.C. Hermosin, and J. Cornejo. 1998. Sorption of imidacloprid on soil clay mineral and organic components. Soil Sci. Soc. Am. J. 62:911-915.

Cox, L., W.C. Koskinen, and P.Y. Yen. 1998. Changes in sorption of imidacloprid with incubation time. Soil Sci. Soc. Am. J. 62:342-347.

Cox, L., W.C. Koskinen, and P. Y. Yen. 1998. Imidacloprid sorption-desorption in soil. Proc. World Cong. Soil Sci. Symp 7:1-7. Aug. 20-26, 1998. Montpellier, France.

Gan, J. and W.C. Koskinen. 1998. Pesticide fate and behavior in soil at elevated concentrations. p. 59-84. In P.C. Kearney (ed.) Pesticide Remediation in Soils and Water. John Wiley & Sons, Chichester, England.

Koskinen, W.C., B.A. Sorenson, D.D. Buhler, D.L. Wyse, E.A. Strand, W. E. Lueschen, M.D. Jorgenson, and H.H. Cheng. 1998. Use of field lysimeters to determine 14C-dicamba persistence and movement in soil. p. 115-121. In F. Fuhr, R.J. Hance, J.R. Plimmer, and J.O. Nelson (eds.) The Lysimeter Concept: Environmental Behavior of Pesticides. ACS Symp. Ser. 699. Amer. Chem. Soc. Washington, DC.

Rochette, E.A. and W.C. Koskinen. 1998. Atrazine sorption in field-moist soils - supercritical fluid carbon dioxide density effects. Chemosphere 35:1825-1839.

Khakural, B.R., P.C. Robert, D.J. Mulla, R.S. Oliveira, G.A. Johnson, and W.C. Koskinen. 1998. Site-specific herbicide management for preserving water quality. p. 1719-1732. In P.C. Robert, R.H. Rust, and W.E. Larson (eds.) Proceedings of the 4th International Conference on Precision Agriculture, July 19-22, 1998, St. Paul, MN ASA, CSSA, SSSA, Madison, WI.

Celis, R., J. Cornejo, M. C. Hermosin, and W. C. Koskinen. 1997. Sorption of atrazine and simazine by model soil colloidal components. Soil Sci. Soc. Am. J. 61:436-443.

Cox, L., W. C. Koskinen, and P. Y. Yen. 1997. Sorption-desorption of imidacloprid and its metabolites in soils. J. Agric. Food Chem. 45:1468-1472.

Cox, L., W. C. Koskinen, and P. Y. Yen. 1997. Influence of soil properties on sorption-desorption of imidacloprid. J. Environ. Sci. Health B33:123-134.

Kearney, P. C., D. R. Shelton, and W. C. Koskinen. 1997. Pesticides in soil and water. p. 419-451. in Kirk-Othmer Encyclopedia of Chemical Technology. 4th edition, Vol.22. John Wiley and Sons. New York.

Koskinen, W. C., and B. L. Barber. 1997. A novel approach using solid phase extraction disks for extraction of pesticides from water. J. Environ. Qual. 26:558-560.

Koskinen, W. C., and S. A. Clay. 1997. Factors affecting atrazine fate in North Central U. S. Soils. Rev. Environ. Contam. Toxicol. 151:117-165.

Marek, L. J., and W. C. Koskinen. 1997. LC-MS analysis of polar pesticides in soil. Am. Environ. Lab. 9:26-28.

Xu, J. M., H. H. Cheng, W. C. Koskinen, J. A. E. Molina. 1997. Characterization of potentially bioreactive soil organic carbon and nitrogen by acid hydrolysis. Nutrient Cycling Agroecosystems. 49:267-271.

Xu, J., W. C. Koskinen, and H. H. Cheng. 1997. Fate of metolachlor in a sandy loam soil. Acta Scientiae Circumstaniae. 17:465-468.

Xu, J., W. C. Koskinen, and H. H. Cheng. 1997. Movement and degradAtion of metribuzin in a sandy loam soil. Chin. Environ.Sci. 17:316-320.

Baker, J. M., W. C. Koskinen, and R. H. Dowdy. 1996. Volatilization of EPTC: Simulation and measurement. J. Environ. Qual. 25:169-177.

Barriuso, E., and W. C. Koskinen. 1996. Incorporating non extractable atrazine residues into soil size fractions as a function of time. Soil Sci. Soc. Am. J. 60:150-157.

Conn, J. S., W. C. Koskinen, N. R. Werdin, and J. S. Graham. 1996. Persistence of metribuzin and metabolites in two subarctic soils. J. Environ. Qual. 25:1048-1053.

Gan, J., R. L. Becker, W. C. Koskinen, and D. D. Buhler. 1996. Degradation of atrazine in two soils as a function of concentration. J. Environ. Qual. 25:1064-1072.

Koskinen, W.C., J. S. Conn, and B. A. Sorenson. 1996. Fate of a symmetric and an asymmetric triazine herbicide in silt loam soils. p. 125-139. In M. Meyer and E. M. Thurman (eds.) Herbicide Metabolites in Surface Water and Groundwater. ACS Symp. Ser. 630. Amer. Chem. Soc., Washington, DC.

Koskinen, W. C., and E. A. Rochette. 1996. Atrazine sorption-desorption in field-moist soils. Intern. J. Environ. Anal. Chem. 65:223-230.

Koskinen, W. C., D. M. Stone, and A. R. Harris. 1996. Sorption of hexazinone, sulfometuron methyl, and tebuthiuron on acid, low base saturated sands. Chemosphere. 32:1681-1689.

Marek, L. J., and W. C. Koskinen. 1996. LC-MS analysis of 4-methoxy-6-methyl-1,3,5-triazin-2-yl containing sulfonylurea herbicides in soil. J. Agric. Food Chem. 44:3878-3881.

Rochette, E. A., and W. C. Koskinen. 1996. Supercritical carbon dioxide for determining atrazine sorption by field-moist soils. Soil Sci. Soc. Am. J. 60:453-460.